Unfortunately, we have no information on arrival time for specific products. It is not advisable to add out-of-stock goods to package, and because it may take several months for them to arrive. Not unlikely, out-of-stock goods will be excluded from sale.You can place separate orders. One specifies only available items, and the other one specifies out-of-stock items.

In order to automatically reserve a currently out-of-stock item upon its arrival, you should place an order and pay for it.

Description:

Android APP: E-WeLink-2.1.13.apk
Support apple cellphone also, you can search "易微联" in App store to setup it;
Support apple cellphone also, you can search "e-welink" in App store to setup it for English version;

WIFi control model, no need to program. No matter where you are, you only need to download a APP to connect the wifi and control the cloud.

Two working voltage: USB 5V Or AC 55V ~ 250V

The easiest way to control the rolling door via cellphone:
Weld two lines at two sides of each button of the controller, and in parallel to the NO and Public (like the picture)

Ways:

Inching: Press Button A to open the relay, it would be cut off after o.7 seconds. The other is the same.
Self-Locking: Press A to open the relay, then A again to switch off. The other is the same.
Interlock: Press A to open the relay, then press B to cut off the A, B open. (It could only keep one relay on among A, B, C, D button)